Switch QuicMakeUnique to std::make_unique, part 1: //third_party/quic

gfe-relnote: n/a (no functional change)
PiperOrigin-RevId: 267662077
Change-Id: Ic63023042eafb77aa80d88749845f841b3078c57
diff --git a/quic/quartc/quartc_multiplexer.cc b/quic/quartc/quartc_multiplexer.cc
index 001e219..36197c8 100644
--- a/quic/quartc/quartc_multiplexer.cc
+++ b/quic/quartc/quartc_multiplexer.cc
@@ -114,7 +114,7 @@
 QuartcSendChannel* QuartcMultiplexer::CreateSendChannel(
     uint64_t channel_id,
     QuartcSendChannel::Delegate* delegate) {
-  send_channels_.push_back(QuicMakeUnique<QuartcSendChannel>(
+  send_channels_.push_back(std::make_unique<QuartcSendChannel>(
       this, channel_id, allocator_, delegate));
   if (session_) {
     send_channels_.back()->OnSessionCreated(session_);